MISO system ready to reliably meet winter demand 

Adequate resources forecast ahead of winter season


For Immediate Release
Nov. 7, 2017

Media Contact:
Mark Brown | 317-448-3287
Julie Munsell | 501-378-4145


CARMEL, Ind. — MISO projects adequate resources will be available to reliably meet demand in the cold months ahead across its footprint, which extends from the Gulf of Mexico to Manitoba, Canada.

The region has 142 gigawatts of projected available supply to meet an expected winter demand of 103.4 GW. The demand forecast is based on the National Oceanic and Atmosphere Administration (NOAA) prediction for normal winter conditions across the North Region and warmer-than-normal weather in much of the Central and South regions.

MISO released the forecast at its annual Winter Readiness Workshop Nov. 6.  The workshop brings together grid operators, utility operations employees, regulators and other stakeholders to ensure operational readiness for extreme winter weather.

MISO discussed three scenarios: a base-reserve scenario, probable-reserve scenario and a high-load scenario. Each case indicates a sufficient level of planning reserves.

In an unlikely, extreme scenario where forecast demand and supply outages are higher than normal, MISO could rely on behind-the-meter and demand-response resources to meet demand. MISO has procedures in place to effectively manage an extreme event, such as the Polar Vortex of 2014.

We continually assess and improve our readiness for peak seasons, including the cold months that often present challenges in terms of weather and generation outages,” noted Rob Benbow, operations executive director. “Our operators are skilled and trained on the most extreme scenarios to ensure we are prepared to maintain system reliability. The Winter Readiness Workshop is another opportunity to further prepare and collaborate with members and stakeholders so that we are in a solid position headed into winter.”

The complete Winter Readiness presentation is available on the MISO website.

About MISO
MISO ensures reliable operation of, and equal access to  high-voltage power lines in 15 U.S. states and the Canadian province of Manitoba. MISO manages one of the world's largest energy markets, with $37 billion in gross annual market charges.  MISO was approved as the nation's first regional transmission organization in 2001.  The non-profit 501(C)(4) organization is governed by an independent Board of Directors and is headquartered in Carmel, Ind. Membership is voluntary.